薄层顶板回采巷道支护技术研究

由于薄层状顶板的承载能力小、稳定性差,一般支护方式很难维护,通过对鑫瑞煤矿5号煤层薄层状顶板在回采巷道中难以支护的理论分析,研究提出顶板采用水力膨胀锚杆配合架棚支护,帮部采用高强度螺纹钢锚杆支护。该技术在现场实施后,巷道变形量很小,有效解决了鑫瑞煤矿采空区下薄层状顶板的回采巷道的维护难题。

The beating capacity with Thin Bedded Roof is small, poor stability, generally supporting method is hard to maintain, study and put forward hydraulic expansion cooperates JiaPeng anchor supporting roof, high strength bolt supporting, rebar help department, through Xinrui coal seam 5 thin bedded roof in mining roadway is difficult to support the theoretical analysis,. Since the implementation of the technology in the field of roadway deformation is small, effective solves the Xinrui coal mine goaf under thin layered roof of gateway maintenance problems.